Home / 778,963.70-1,168,359.15-638,477.30

Finding the Fourth Proportional to 778,963.70, 1,168,359.15 and 638,477.30

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Solution

The fourth proportional to 778,963.70, 1,168,359.15 and 638,477.30 is: 957,645.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,963.70 : 1,168,359.15 = 638,477.30 : x
  2. Step 2: Convert to fraction form
    778,963.70/1,168,359.15 = 638,477.30/x
  3. Step 3: Cross multiply
    778,963.70x = 1,168,359.15 × 638,477.30
  4. Step 4: Simplify right side
    778,963.70x = 745,970,795,522.30
  5. Step 5: Solve for x
    x = 745,970,795,522.30/778,963.70
  6. Step 6: Final answer
    x = 957,645.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.